condition mean min max 4 h after light 14.869223999999999 12.487487 17.250961 8 h after light 20.578391 16.027175 25.129607 12 h after light 15.8774245 13.586675 18.168174 4 h after dark 21.744095 15.222635 28.265555 8 h after dark 15.378718 14.865146 15.89229 12 h after dark 12.867364 12.867364 12.867364